Gemfile in mongomodel-0.2.2 vs Gemfile in mongomodel-0.2.3

@@ -1,11 +1,11 @@
-source "http://gemcutter.org"
+source "http://rubygems.org"
 git "git://github.com/rails/rails.git"
 
-gem "activemodel"
-gem "activesupport"
+gem "activemodel", ">= 3.0.0.beta3"
+gem "activesupport", ">= 3.0.0.beta3"
 
-gem "mongo"
-gem "bson"
-gem "bson_ext"
+gem "mongo", '>= 0.20.1'
+gem "bson", '>= 0.20.1'
+gem "bson_ext", '>= 0.20.1'
 
 gem "rspec"